package com.example.day14.ex07;

import java.util.ArrayList;
import java.util.List;

public class ForDemo {
    public static void main(String[] args) {
        int[] arr = {1, 2, 3, 4, 5};
        for (int i : arr) {
            System.out.println(i);
        }
        System.out.println("--------");
        String[] strArray = {"hello", "world", "java"};
        for (String s : strArray) {
            System.out.println(s);
        }
        System.out.println("--------");
        List<String> list = new ArrayList<String>();
        list.add("hello");
        list.add("world");
        list.add("java");
        for (String s : list) {
            System.out.println(s);
        }
        System.out.println("--------");
//        内部原理是一个Iterator迭代器
/*        for(String s:list){
            if(s.equals("world")){
                list.add("javaee");
            }
        }*/
    }
}
